Is the mask bead inside or outside?
Is the mask bead inside or outside?How to distinguish between surgical masks and ordinary medical masks? How does Bai distinguish its pros and cons?
1. How to distinguish surgical masks from ordinary medical masks?
Medical protective masks in masks are relatively easy to distinguish because they are mostly bowl-shaped and folded. The degree of surgical masks is similar to the shape of ordinary medical masks, which are made of non-woven fabrics and need to be identified. After careful comparison, the thickness and quality of the middle filter layer of different types of masks also have obvious differences.
1.1 Different outer packaging: Surgical masks and ordinary medical masks will indicate different categories except the outer packaging, the most important
2. How to distinguish the front and back of the mask?
The above-mentioned masks are made of three layers of non-woven fabrics, and the front and back sides need to be distinguished. Otherwise, they cannot be worn correctly, and the protective effect of the mask should be lost.
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2.1 The colors of the front and back sides are mostly different: in order to distinguish them for clinical use during manufacture, the outer surface layer is mostly light blue or dark color; the inner layer is mostly white or light color.
2.2 The degree of smoothness is different: the outer surface layer is mostly smooth because of its water-blocking power; the inner layer is mostly made of materials with good breathability, close to the skin, which is conducive to breathing, more delicate, and comfortable.
2.3 The position of the nose clip is different: the bead of the nose clip is generally in the middle and outer layers, not the inner
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